redoc/config/docker/README.md
Alex Varchuk c01c6876f2
feat: initialize release candidate for v3.0.0
Co-authored-by: Roman Hotsiy <gotsijroman@gmail.com>
Co-authored-by: Alex Varchuk <olexandr.varchuk@gmail.com>
Co-authored-by: Oprysk Vyacheslav <vyacheslav@redocly.com>
Co-authored-by: Ivan Kropyvnytskyi <130547411+ivankropyvnytskyi@users.noreply.github.com>
Co-authored-by: Yevhen Pylyp <yevhen.pylyp@redocly.com>
Co-authored-by: Vladyslav Makarenko <vladyslav.makarenko@redocly.com>
Co-authored-by: Yevhenii Medviediev <yevhenii.medviediev@redocly.com>
Co-authored-by: Oleksii Horbachevskyi <oleksii.horbachevskyi@redocly.com>
Co-authored-by: volodymyr-rutskyi <rutskyi.v@gmail.com>
Co-authored-by: Adam Altman <adam@redoc.ly>
Co-authored-by: Andrew Tatomyr <andrew.tatomyr@redocly.com>
Co-authored-by: Anastasiia Derymarko <anastasiia@redocly.com>
Co-authored-by: Roman Marshevskyy <roman.marshevskyy@redoc.ly>
Co-authored-by: Lorna Mitchell <lorna.mitchell@redocly.com>
Co-authored-by: Taylor Krusen <taylor.krusen@redocly.com>
2025-10-24 17:40:43 +02:00

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# Official Redoc Docker Image
## Usage
### Docker
Serve remote spec by URL:
docker run -it --rm -p 80:80 \
-e SPEC_URL='http://localhost:8000/swagger.yaml' redocly/redoc
Serve local file:
docker run -it --rm -p 80:80 \
-v $(pwd)/demo/swagger.yaml:/usr/share/nginx/html/swagger.yaml \
-e SPEC_URL=swagger.yaml redocly/redoc
Serve local file and watch for updates:
docker run -it --rm -p 80:80 \
-v $(pwd)/demo/:/usr/share/nginx/html/swagger/ \
-e SPEC_URL=swagger/swagger.yaml redocly/redoc
### OpenShift
To quote [OpenShift Container Platform-Specific Guidelines](https://docs.openshift.com/container-platform/3.11/creating_images/guidelines.html#openshift-specific-guidelines):
> Support Arbitrary User IDs
>
> By default, OpenShift Container Platform runs containers using an arbitrarily assigned user ID. This provides additional security against processes escaping the container due to a container engine vulnerability and thereby achieving escalated permissions on the host node.
>
> For an image to support running as an arbitrary user, directories and files that may be written to by processes in the image should be owned by the root group and be read/writable by that group. Files to be executed should also have group execute permissions.
To comply with those requirements the `Dockerfile` contains instructions to adapt the rights for the folders:
- `/etc/nginx` because the `docker-run.sh` script modifies it at startup time
- `/usr/share/nginx/html` because the `docker-run.sh` script modifies it at startup time
- `/var/cache/nginx` because the Nginx process writes to it
- `/var/log/nginx` because the Nginx process writes to it
- `/var/run` because the Nginx process writes to it
Another issue with OpenShift is that the default exposed port `80` cannot be used as it is restricted. So one needs to use another port like `8080` (using the `PORT` configuration as described below), and then to configure the `container spec` accordingly.
## Runtime configuration options
- `PAGE_TITLE` (default `"ReDoc"`) - page title
- `PAGE_FAVICON` (default `"favicon.png"`) - URL to page favicon
- `BASE_PATH` (optional) - path prefix
- `SPEC_URL` (default `"http://petstore.swagger.io/v2/swagger.json"`) URL to the spec (if mounted as a file inside the container and `BASE_PATH` is used, the spec should contain the prefix, e.g., for `"/v1/swagger.json"`)
- `HOST` (default `localhost`) - nginx server_name
- `PORT` (default `80`) - nginx port
- `REDOC_OPTIONS` (optional) - [`<redoc>` tag attributes](https://github.com/Redocly/redoc#redoc-tag-attributes)
## Build
docker build -t redocly/redoc .